Hi Guys We have two Samsung chassis which we are having problems finding the solution..The K52ma chassis has no channels we have replaced the tuner checked the main b plus at 12v...The data supplies are at 35 volts and 5 volts and replaced the main microprocessor. If injection at tuner if output is ok still no channels...channel number comes up on screen..also can't find the autoprogram menu .. hmmmmmmm The second chassis is a K52MC which is dead..No 5 volts to Processor. .Input power supply voltage is ok looks like a output supply problem.. Anyone with an e-fact of these chassis's or ( Tuner and power supply) Your help is appreciated. Alvin Rose Radio & TV Centre.. . ------------------------------------------ To REMOVE your email address, click here: http://www.tech-assist.org/unsubb.html ------------------------------------------ ***NEW*** Tips Added Instantly!!!*** Submit Repair Tips here: http://www.tech-assist.org/secure/tip/